#1F0B37
Closest named color: Midnight Purple (#280137). oklch(21% 0.081 300.3), rgb(31, 11, 55).
Aa
White text reads best on this color (18.08:1).
About this color
#1F0B37 is a very dark, moderately saturated purple. In OKLCH its lightness is 21%, its chroma 0.081 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Purple (#280137), ΔE 0.029 away. White text reads best on it, at 18.08:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.081) |
| Temperature | in between |
| Nearest name | Midnight Purple (#280137) |
| Black text | 1.16:1 |
| White text | 18.08:1 |
Values
| HEX | #1F0B37 |
| RGB | rgb(31, 11, 55) |
| HSL | hsl(267, 67%, 13%) |
| OKLCH | oklch(21% 0.081 300.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #1F0B37 | 18.08:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #1F0B37 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #1F0B37 text on white | 18.08:1 | AAA | Lc 104.5 | Preferred for body text |
| #1F0B37 text on black | 1.16:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F7F4FD
oklch(97.2% 0.012 301.3)
-
Step 100
100
#ECE6FA
oklch(93.6% 0.027 299.5)
-
Step 200
200
#DED2F8
oklch(88.5% 0.053 299.7)
-
Step 300
300
#CAB3F6
oklch(81% 0.096 300)
-
Step 400
400
#B088F1
oklch(70.7% 0.153 300.1)
-
Step 500
500
#9E65EC
oklch(63.1% 0.197 300.3)
-
Step 600
600
#8A47DA
oklch(55.6% 0.214 300.4)
-
Step 700
700
#7537BE
oklch(49.1% 0.199 300)
-
Step 800
800
#5F2F99
oklch(42.7% 0.164 300.2)
-
Step 900
900
#4E2C7A
oklch(37.8% 0.128 300.5)
-
Step 950
950 (this color)
#1F0B37
oklch(21% 0.081 300.3)
#1F0B37 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #001638 | 0.058 |
| Deuteranopia (no green cones) | #001636 | 0.058 |
| Tritanopia (no blue cones) | #1A151F | 0.061 |
| Achromatopsia (no color) | #161616 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F0B37
#1F0B37
oklch(21% 0.081 300.3)
- #151B00
#151B00
oklch(20.8% 0.05 120.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #1F0B37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Purple #280137 ΔE 0.029
- Very Dark Purple #2A0134 ΔE 0.034
- Dark Purple #35063E ΔE 0.053
- Dark Indigo #1F0954 ΔE 0.055
- Deep Purple #36013F ΔE 0.057
- Eggplant #380835 ΔE 0.060
- Navy Blue #001146 ΔE 0.062
- Rich Black #0D1B2A ΔE 0.064
Use #1F0B37 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.